TCRG Logo March '10 Meeting Pics
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Photos courtesy of Jeff Sampson
Click thumbnails for a larger view.
1003_19.jpg
Bruce Shapiro brought his
Egg Bots. They draw pictures
on eggs with felt tip
markers. www.egg-bot.com/
1003_10.jpg
They look like this.
1003_11.jpg
And like this.
1003_07.jpg
Bruce expaining how they work.
1003_08.jpg
Some eggs that were created.
1003_09.jpg
Close up of some eggs.
1003_12.jpg
The egg plotters use
controller boards that
Brian Schmalz designed.
Here are three different
versions.
www.schmalzhaus.com/
1003_13.jpg
Close up of the boards.
1003_18.jpg
The Egg Bot is driven from a
laptop computer. I think the
code is written in Liberty
Basic.
1003_01.jpg
Jeff Sampson's gyroscope
test box. The Olimex board at
the top just provides power
and an RS232 convertor.
1003_04.jpg
Close up of the box. The tall
skinny metal can is a
Panasonic gyroscope. The fat
square metal can is a
Gyration gyroscope. The board
missing from the big DIP
socket was a Melexis
gyroscope.
1003_02.jpg
Jeff Sampson's standardized
processor board (on the left)
and a custom 8 channel sonar
board.
1003_05.jpg
The standardized processor on
a custom IMU board. The IMU
has a Melexis Gyroscope, a
Sparkfun 5 axis IMU board and
a barometric pressure sensor
module.
1003_03.jpg
Here is a standardized
processor board (which has my
custom Robot Bus interface)
connected to two other Robot
Bus modules. The orange cable
is a cross over which makes
the module on the left the
master.
1003_06.jpg
Kai and Lewis Dickson's
robot.
1003_14.jpg
Jeff Sampson brought his
motor controller project. It
will eventually be a 3 or 4
channel motor controller that
does PID control of each
channel. It uses an Atmel
XMega128A1 processor.
1003_15.jpg
Close up of the prototype.
1003_16.jpg
These two boards form the
actual controller. I have a
custom XMega prototyping
board at the bottom. The top
board has a small amount of
logic and the motor and
encoder connectors.
1003_17.jpg
I also have the Olimex
prototyping board that has
two JRKerr PIC-ServoSC chips.
I switch my motor back and
forth from this controller to
my controller to compare the
performance.
jrkerr.com/icproducts.html

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